Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2024WAGONEER L CARBIDE, RWDREPAIR AND DIAGNOSISSUSPENSIONSUSPENSION CONTROL SYSTEMSAIR SUSPENSION CONTROL MODULE (ASCM) - INTERMITTENT CONDITION, PRE-DIAGNOSTIC PROCEDURE AND VERIFICATION TESTSTANDARD PROCEDUREASCM PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDUREPOSSIBLE CAUSE
2024 Jeep Wagoneer L Carbide, RWD
Possible Cause
2024 Jeep Wagoneer L Carbide, RWDSECTION Possible Cause
| AIR SUSPENSION CONDITION | POSSIBLE CAUSE | ACTION |
| ECU NOT COMMUNICATING/COMPRESSOR NOT RUNNING | POWER AND/OR GROUND ISSUE | CHECK PINS 1. 6, AND 25 FOR VOLTAGE (ABOVE 11.8v) |
| GENERAL COMMUNICATION ISSUE | FOLLOW CAN DIAGNOSTIC TROUBLESHOOTING | |
| "AIR SUSPENSION TEMPORARILY DISABLED" MESSAGE IN THE CLUSTER | VEHICLE MAY BE IN SERVICE MODE | TURN MODE OFF VIA RADIO OPTIONS (Settings > Suspension) |
| VEHICLE NOT LEVEL | IN PLANT MODE | DISABLE PLANT MODE BY RUNNING "COMPRESSOR CIRCUIT TEST" SCAN TOOL FUNCTION AND DRIVING VEHICLE ABOVE 15 MPH FOR AT LEAST ONE MINUTE |
| RIDE HEIGHT NOT CALIBRATED | CALIBRATE VEHICLE USING SCAN TOOL FUNCTION "SET RIDE HEIGHT LEVEL" Refer to SENSOR, HEIGHT, REMOVAL AND INSTALLATION . |
|
| COMPRESSOR WILL NOT RUN CORRECTLY | CHECK PINS 1. 6, AND 25 FOR VOLTAGE (ABOVE 11.8v) | |
| AIR LINE RESTRICTION/BLOCKAGE | PERFORM AIR LEAK TEST Refer to: AIR LEAK DIAGNOSIS . |
|
| RIDE HEIGHT SENSOR LINKAGE OFF OR INCORRECTLY INSTALLED | CONNECT RIDE HEIGHT SENSOR LINKAGE | |
| VEHICLE RAISES/LOWERS ON ITS OWN | UP/DOWN BUTTON STUCK | PHYSICALLY CHECK THE UP/DOWN SWITCH |
| AIR LEAK IS PRESENT | PERFORM AIR LEAK TEST Refer to: AIR LEAK DIAGNOSIS . |
|
| RIDE HEIGHT SENSORS WILL NOT CALIBRATE | AIR MASS LOW | PERFORM COMPLETE SYSTEM FILL Refer to: COMPLETE SYSTEM FILL . |
| AIR LINE RESTRICTION/BLOCKAGE | PERFORM THE AIR LEAK TEST Refer to: AIR LEAK DIAGNOSIS . |
|
| RIDE HEIGHT SENSORS | VERIFY RIDE HEIGHT MEASUREMENTS ARE WITH IN SPECIFICATIONS | |
| SCAN TOOL ROUTINE NOT WORKING CORRECTLY | FOLLOW CAN DIAGNOSTIC TROUBLESHOOTING |
NOTE:
Diagnose and repair any system voltage DTCs before continuing with this test.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.